D emi. T agada. Scheme 20 Copolymerisation of ethene and methylacrylate catalysed by a Ni-diimine catalyst. To overcome the problem of O -coordination to the oxophilic Ni center, several anionic ligands have been used to achieve copolymerisation of ethene and methyl acrylate , mainly based on [P—O], [P—N] or [N—O] coordination to the metal centre. U lla.
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